/**
 * Copyright (C) 2009 aileron.cc
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package cc.aileron.workflow;

import java.lang.reflect.InvocationTargetException;

import cc.aileron.workflow.container.binder.WorkflowTransitionProcessFactory;
import cc.aileron.workflow.environment.WorkflowEnvironment;

import com.google.inject.Binder;
import com.google.inject.Module;

/**
 * @author Aileron
 */
public class WorkflowModule implements Module
{
    /*
     * (非 Javadoc)
     * 
     * @see com.google.inject.Module#configure(com.google.inject.Binder)
     */
    public void configure(final Binder binder)
    {
        binder.install(applicationModule);

        binder.bind(WorkflowEnvironment.class)
            .toInstance(environment);

        binder.bind(WorkflowTransitionProcessFactory.class)
            .to(transitionProcessFactory)
            .asEagerSingleton();
    }

    /**
     * @param environment
     * @param transitionProcessFactory
     * @throws ClassNotFoundException
     * @throws NoSuchMethodException
     * @throws InvocationTargetException
     * @throws IllegalAccessException
     * @throws InstantiationException
     * @throws SecurityException
     * @throws IllegalArgumentException
     */
    public WorkflowModule(
        final WorkflowEnvironment environment,
        final Class<? extends WorkflowTransitionProcessFactory> transitionProcessFactory) throws IllegalArgumentException,
            SecurityException,
            InstantiationException,
            IllegalAccessException,
            InvocationTargetException,
            NoSuchMethodException,
            ClassNotFoundException
    {
        this.environment = environment;
        this.transitionProcessFactory = transitionProcessFactory;
        this.applicationModule = environment.getApplicationModule()
            .getConstructor(WorkflowEnvironment.class)
            .newInstance(environment);
    }

    private final Class<? extends WorkflowTransitionProcessFactory> transitionProcessFactory;

    private final Module applicationModule;

    private final WorkflowEnvironment environment;
}
